28526785 has 16 divisors (see below), whose sum is σ = 40824576. Its totient is φ = 18710208.

The previous prime is 28526783. The next prime is 28526843. The reversal of 28526785 is 58762582.

It is a cyclic number.

It is not a de Polignac number, because 28526785 - 2¹ = 28526783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28526783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16914 + ... + 18523.

It is an arithmetic number, because the mean of its divisors is an integer number (2551536).

Almost surely, 2^28526785 is an apocalyptic number.

It is an amenable number.

28526785 is a deficient number, since it is larger than the sum of its proper divisors (12297791).

28526785 is a wasteful number, since it uses less digits than its factorization.

28526785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35472.

The product of its digits is 268800, while the sum is 43.

The square root of 28526785 is about 5341.0471819672. The cubic root of 28526785 is about 305.5513988538.

The spelling of 28526785 in words is "twenty-eight million, five hundred twenty-six thousand, seven hundred eighty-five".